Van der Waals equation of state
Description
The van der Waals equation may be considered as the ideal gas law, “improved” due to two independent reasons: Molecules are thought as particles with volume, not material points and while ideal gas molecules do not interact, we consider molecules attracting others within a distance of several molecules’ radii.
Related formulasVariables
| p | The pressure (absolute) (Pa) |
| pc | The pressure at the critical point (Pa) |
| Vc | The molar volume at the critical point (m3/mol) |
| Vm | The molar volume (m3/mol) |
| R | molar gas constant |
| T | Absolute temperature (K) |